EXFO FG-750 - Manual (Page 35)

Safety Information
Fiber Guardian 21
Electrical Safety Information
Equipment Ratings
Temperature

Operation

Storage
–5 °C to 50 °C (23 °F to 122 °F)
–40 °C to 70 °C (–40 °F to 158 °F)
Heat release 300 W/m2
Relative humidity  95 % non-condensing
Maximum operation
altitude
3000 m (9843 ft)
Pollution degree 2
Overvoltage category II
Input power

AC model a

DC model
b
a. Not exceeding ± 10 % of the nominal voltage.
b. Range: –40 - –72 V

100 - 240 V; 50/60 Hz; 2 A/1 A

–48 V; 3 A